BibTeX:

@article{IJIRSTV4I10024,
     title={Fuzzy Logic Controller Based Power Quality Improvement of Doubly Fed Induction Generator Wind Energy Conversion System},
     author={C. Ebbie Selva Kumar, J. Jasper and R. Eveline Pregitha},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={10},
     pages={44--52},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I10024.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Fossils fuels will be the main fuels for the thermal power there is a fear that they will get exhausted eventually in next century therefore many countries are trying systems based on non-conventional and renewable sources. Fuzzy logic control is proposed for windmill generators to reduce the total harmonic distortion present in the conventional method which uses PI controller. PI controller is used only for linear loads. The proposed system consists of a doubly fed induction generator based variable speed wind energy conversion systems (WECS) consisting two back to back inverters with a common dc link. The gate pulses for the two converters are controlled by fyzzy logic controller. The generator side inverter controls its speed to extract maximum power at different speeds, while the grid side inverter delivers the renewable power to the power to the grid with 3P4W nonlinear load compensation simultaneously. Moreover, in the proposed system, the grid side inverter is also utilized as a harmonic, a reactive power, and unbalanced load compensator for 3P4W nonlinear load. This enables grid to always supply /absorb a balanced set of fundamental currents at unit power factor. The effectiveness of the proposed scheme is developed and simulated using MATLAB/ Sim Power System software.

Fuzzy Logic control, doubly fed Induction Generator, Total Harmonic Distortion